Center National for Evaluation of Photoprotectionn
Bridge between research and industries

We assist companies, research organizations and innovation centers in their development, sustainability or analysis of polymeric materials

Since 1986, the CNEP has supported you in understanding the aging phenomena of your polymer materials. Thanks to our expertise and knowledge in chemistry we can guide you to effectively control the durability or degradation of your products.
In addition, our skills in analysis of plastic materials and our many scientific devices allow us to respond to your requests for characterization or expertise of failures
Established in the Auvergne-Rhône-Alpes region near Clermont-Ferrand (France) over more than 1500m², our laboratory has one of the largest parks of accelerated photo-aging chambers, ventilated and climatic ovens as well as more specific durability or aging prediction devices. The CNEP also has a wide range of physico-chemical analysis devices, including multiple spectrometers, microscopes, chromatographies or characterization devices. This equipment, covering a vast experimental and analytical field, allows us to respond quickly and efficiently to the numerous requests concerning polymer materials.
Our main areas of activity and expertise include the sectors concerned by the use and future of plastics: sports and spare-time activities, agriculture, packaging or transport. We are also present in the fields of electricity and telecommunications, medical and of course in all fields of research related to polymers. We are in contact with more than 450 local, national and international companies
a unique company in the world


customers worldwide


studies by year


years of research


analysed cases

latest news
CNEP weathering

Supply of lamps for photoaging devices SEPAP 12.24

Supply of lamps for photoaging devices SEPAP 12.24 Until 2019, the POLAMP company manufactured this type of lamp in Europe and was able to supply users of SEPAP 12.24. Today, its stock being exhausted and the demand having considerably decreased, this company decided to stop the production of this type

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Information Covid-19

Information Covid-19 Our country has gone through and continues to go through an unprecedented health crisis. Maintaining contact and providing studies for our partners and clients has led the CNEP to adapt and put in place a Business Continuity Plan. To do this, the women and men of the CNEP

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they trust us

some examples among the 450 national and international companies that call on our services

they talk about us

CNEP, an example of the transfer of scientific knowledge

The provision of research tools, in this case in physico-chemistry and photochemistry, to the chemical industry, if it can be done in a useful way by conventional university ways, can also be done through research centers such as CNEP whose only concern is the resolution of the industrial problem

CNEP explains oxobiodegradation

Information on materials with "acquired biodegradability" more conveniently called "oxo-biodegradable" is generally not offered in an acceptable form and these materials have gradually acquired a bad reputation, sometimes justified by errors in the development of these materials.

Clermont-Ferrand highlights materials

The work of this research unit is authoritative and attracts more and more processors and manufacturers who face problems of aging of the polymers they use. This is the case for the automotive or electrical industry, sports equipment and artists for the conservation of their works!

Specialized in the study and durability of polymer materials, CNEP is 30 years old

Created thirty years ago, on the initiative of Professor Jacques Lemaire, the CNEP now has the world's largest groups among its “customers”, an expert in the physico-chemical analysis of phenomena of degradation.

accreditations, certifications and partnerships

ISO 9001 version 2015

Centre de Ressources Technologiques

Réseau Allizé Plasturgie

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Centre National d'Evaluation de Photoprotection

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Summer break

The CNEP will be in very reduced activity from August 10 to 15, 2020, contact us preferably after this period.
Thank you

La certification ISO 9001 - 2015

L'ISO 9001:2015 spécifie les exigences relatives au système de management de la qualité lorsqu'un organisme:

a) doit démontrer son aptitude à fournir constamment des produits et des services conformes aux exigences des clients et aux exigences légales et réglementaires applicables, et

b) vise à accroître la satisfaction de ses clients par l'application efficace du système, y compris les processus pour l'amélioration du système et l'assurance de la conformité aux exigences des clients et aux exigences légales et réglementaires applicables.

Toutes les exigences de l'ISO 9001:2015 sont génériques et prévues pour s'appliquer à tout organisme, quels que soient son type ou sa taille, ou les produits et services qu'il fournit.

Obtenir la certification ISO 9001:2015, c’est s’appuyer sur 8 principes de management :
• l’orientation client ;
• l’implication du personnel ;
• l’approche processus ;
• l’amélioration continue ;
• la gestion par approche système ;
• le leadership ;
• la prise de décision fondée sur des preuves ;
• le management des relations avec les parties intéressées.